Chapter 2 63
Boot Up and Initialization Troubleshooting
Signal Level Verification
Signal Level Verification
Measure the 50 MHz RF calibrator signal level by pressing Input/Output, RF
Calibrator
, 50 MHz. Now press Freq, 50 MHz, SPAN, 1 MHz, Peak Search. If the
analyzer is functioning correctly in low band, the 50 MHz calibrator level should
be −25 dBm ± 2 dB. See the figure below.
Is the signal level correct?
If yes:
The analyzer low band path is functioning properly at least at 50 MHz.
If no:
Refer to Chapter 4 , “RF Section Troubleshooting” in this manual.
NOTE It is possible that other input frequencies could have an amplitude problem even
though the 50 MHz calibrator is within tolerance. Using the internal RF calibrator
provides a quick check of the low band path.
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